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(Model.) 2 Sheets-Sheet 1. F. A. TERHBRST.

CONVERTIBLE SKATE.

No. 327,350. Patented Sept. 29, 1885.

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ATTORNEY.

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(Model.) 2 Sheets-Sheet 2A Il'. A. TERHERST. CONVERTIBLE SKATE.

No. 327,350. Patented Sept. 29, 1885.

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ATTORNEY N. PETERS, Pnwumogmpner. wmingmn. e. c.

UNITED STATES PATENT OFFICE.

FRANK. A. TERHERST, OF KANSAS CITY, MISSOURI.

CONVERTI BLE SKATE.

SPECIFICATION forming part of Letters Patent No. 327,350, dated September 29, 1885.

Application filed August 29, 1884. (Model.)

T0 all whom it may concern/.-

Beit known that I, FRANK. A. TERHERsT, of Kansas City, Jackson county, Missouri, have invented a new and Improved Converti` ble Skate, of which the following is a full, clear, and exact description.

rEhe object of my invention is to provide a simple and durable skate that may readily be changed from a roller-skate to a sliding skate, or vice versa; and it consists in providing irnproved means for attaching the roller-hangers to the skate-plate, so that the latter may be capable of an easy rocking movement upon the hangers; and, further, in providing improved means for obviating lateral slipping of the rollers when in use; and my invention consists, further, of means for detaching the roller-hangers from the skate-plate, and also in the provision of an improved method for xing sliding runners thereto, as hereinafter more fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in each of the figures.

Figure lis a longitudinal elevation of the improved skate plate with rollers applied thereto. side of the same with the leading-rollers removed. Fig. 3 is an inverted transverse section through the middle of one of the hangers, one roller being removed. Fig. 4 is a longitudinalelevation, enlarged, of the pintle or key that is used for locking the hangers in place. Fig. 5 is a transverse section exhibit ing the manner of applying the rocking pressure-straps to the skate-plate. The view is enlarged and inverted. Fig. 6 is a longitudinal elevation of the skate-plate with the rollers removed therefrom and sliding runners substituted. Fig. 7 is a vertical section showing the locking device for the runners at the heel of the skate. Fig. 8 is a top view of my improved runner detached, and Fig. 9 is a plan exhibiting the under side of the skate with portions of the runner broken away.

A, B, and C represent the ordinary leather fastenings of a skate.

The hangers S are each provided with three pendent supports, H, for the stationary axles P-one for each end of said axle-the third Fig. 2 is a plan view of the under' being placed intermediate of the other two, so that the rollers F, mounted upon the axle, are separated from each other, as shown. The said rollers F are provided with arectangular groove, G', upon their circumference, and with a lubricant-passage, R, extending across their diameter from the inner surface of said groove. Rubber rings G are sprung into these grooves, for the double purpose of obviating lateral slipping of the rollers when in use and to render them comparatively noiseless. The said rubber rings are formed circular in crosssection, so that when it is desired to lubricate the groove, and thereby expose the passage for the lubricant.

The bodies of my hangers are provided near their longitudinal extremities with a rectangular aperture, O', through which passes the pendent lugO of the pressurestraps N, which latter are fixed to the under side of the skateplate D by means of the screws Q. The said lug O is provided with an aperture, T, in which the pintle Kisinserted for the purpose of locking the rollerhangers in position. The said pintle is kept in place by reason of the wire bow-spring L, which is attached at each end across the under side of the hanger, springing into the annular depression K in the body thereof.

When the hangers are in position upon the skate-plate D, the latter is capable of a very easy rocking movement, for the reason that it is loosely attached to the pressure-straps N, the under surfaces of which latter are in a circular form and are adapted to slightly roll or rock upon the upper surface of the hangers.

The dat spring M, which is attached under a slight tension across and to the upper surface ofthe hangers, is preferably not designed to support the weight of the operator, but it .mainly tends toward keeping the body of the skate in a vertical line.

By removing the pintles K from the apertures T in the pressure-straps N the hangers may be removed from the skate-plate D, and the runner u, which has the pressure-plates z j fixed to its upper edge, may be substituted therefor, as will be described farther on. The pressure-plates upon the runner lu are provided with a lug, a, which projects therefrom the rollers they may be partly rolled out of IOO on a central line toward the front extremity of the runner. By inserting the said lugs a Within the space a beneath the pressurestraps N the runner will be securely held in a proper position upon the Skateplate, and by running forward the locking-screw W, which is inserted in athreaded aperture within that pressure-strap located at the rear end of the skate, the runner is locked in place.

The screw WV is provided with a rectangular head for turning with a key; but it may be sufciently tightened with the fingers.

The strap-plate E is fixed to the under side of the skateplate D, and prevents longitudinal movement of the leather foot-fastening C.

Having thus described myinvention, Lclaim as new and desire to secure by Letters Patent- FRANK. A. TERHERST.

Vitnesses:

L. E. SMrrH, HAL. C. BRENT. 

